What is the domain of the relation, and is the relation a function?
{(1,2), (2,7), (9,10)}
o The domain is {1, 2,9}. The relation is not a function.
o The domain is {1, 2,9}. The relation is a function.
o The domain is {1,5, 1}. The relation is not a function.
O The domain is {2, 7, 10). The relation is a function.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

mxb67

step-by-step explanation: